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File name ba6219b.pdf

BA6219B/BA6219BFP-Y Motor driver ICs Reversible motor driver BA6219B/6219BFP-Y The BA6219B and BA6219BFP-Y are reversible-motor drivers suitable for brush motors. Two logic inputs allow four output modes: forward, reverse, idling, and braking. Two motor revolving speed can be set arbitrarily by controlling the voltage applied to the motor. !Features 1) Large output current. (IO=2.2A Max.) 2) Built-in thermal shutdown circuit. 3) Built-in output voltage setting pins. 4) Small standby supply current. !Applications VCRs and cassette tape recorders !Block diagram CD1 3pin (2pin) VCC2 8pin (11pin) CD2 9pin (13pin) 7pin VCC1 (10pin) 2pin 10pin (24pin) (15pin) VR OUT1 OUT2 4pin (4pin) IN1 5pin (6pin) THERMAL SHUTDOWN CIRCUIT IN2 6pin (8pin) 1pin 19,20pin GND 7pin ( ) CONTROL CIRCUIT Figures in parentheses for the BA6219BFP - Y 1/7 BA6219B/BA6219BFP-Y Motor driver ICs !Absolute maximum ratings (Ta = 25°C) Parameter Applied voltage Power dissipation BA6219B BA6219BFP - Y Symbol VCC Pd Topr Tstg IO VIN Limits 24 2200 1 Unit V mW °C °C A V 1450 2 -20 to +75 -50 to +125 2.2 3 Operating temperature Storage temperature Output current Input voltage -0.3 to VCC1 1 Reduced by 22mW for each increase in Ta of 1°C over 25°C. 2 When mounted on a 90+ 50+ 1.6 mm glass epoxy board. Reduced by 14.5 mW for each increase in Ta of 1°C over 25°C . 3 3500µs pulse with a duty ratio of 1% . !Recommended operating conditions (Ta = 25°C) Parameter Operating power supply voltage Symbol VCC1 VCC2 Min. 8 Typ. - Max. 18 Unit V !Electrical characteristics (unless otherwise noted, Ta=25°C and VCC=12V) Parameter Symbol ICC1 ICC2 ICC3 VTH VH VL Min. - - - 1.0 6.5 - Typ. 1.2 16 25 2.0 - - Max. 2.5 35 60 3.0 - 1.2 Unit mA mA mA V V V Conditions Current dissipation 1 Current dissipation 2 Current dissipation 3 Input threshold voltage Output high level voltage Output low level voltage Both input pins LOW One input HIGH, the other LOW Both input pins HIGH Low level is 1V or less, HIGH leves is 3V or more RL=60,ZD=6.8V RL=60 !Electrical characteristics curves 10 ICC2 : One input pin HIGH, the other LOW VCC=12V ICC3 SUPPLY CURRENT : ICC(mA) SUPPLY CURRENT:ICC (mA) 8 OUTPUT VOLTAGE : VO (V) 40 ICC3 : Input pins HIGH 13 6 30 ICC2 20 11 VH 9 4 ICC1 input pin LOW 4 VL 2 2 10 0 0 4 8 12 16 20 0 0 4 8 12 16 20 0 0 0.4 0.8 1.2 1.6 2.0 2.4 SUPPLY VOLTAGE : VCC(V) SUPPLY VOLTAGE : VCC (V) OUTPUT CURRENT : IO (A) Fig.1 Current dissipations 1 vs. power supply voltage Fig.2 Current dissipation 2,3 vs. power supply voltage Fig.3 Output voltage vs. output current 2/7 BA6219B/BA6219BFP-Y Motor driver ICs 20 VCC=18V 16 OUTPUT "H" VOLTAGE : VOH (V) 12 VCC=12V 8 VCC=8V 4 0 0 4 8 12 16 20 4pin VOLTAGE : V4 (V) Fig.4 Output voltage vs. 4 pin voltage !Measurement circuits RL 60 BA6219B 1 2 3 4 5 6 7 8 9 10 BA6219BFP-Y A A RC 10 6.8V 1V A A RC 10 6.8V 1V 3V VCC 12V A To 4pin To 11pin To 24pin To 15pin RL60 A 3V VCC 12V To 4pin To